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A magazine claims that its readers have an average annual income of $43,725 with a standard deviation of $3,856. You randomly sample on 27 of the magazine's readers and an average income of $38,251. Determine if the income of the readers is significantly less than the income claimed by the company using a = 0.01 and the prob-value approach.
Estimate the probability that the machine will overflow an 8 oz cup.
1. a normally distributed population has a mean micro32 and a standard deviation ?7. for a set of samples of size
What is the path of steepest ascent and how is it calculated? Are there problems in which the path of steepest descent would be of more
An analyst working at BC Statistics is compiling a report on the use of the internet at home. In 1997, 250 randomly selected people were asked about the average amount of time spent on the internet per week.
The heaviest person appears to be an outlier. Do you think that observation is a legitimate observation, or do you think an error was made in recording or entering the data?
Explain a few of the following on whatever topic you choose: decision tree, decision stragety, probability, forecasting, linear programming as it relates to work, life or interset.
Take any number, square it, and add 6, multiply by the original number. Now add 5 to that. Now divide this by the original number plus 1. Now subtract your original number and you should get 5.
Which measure of association would the researcher use to compare the relationship between the IV and DV? Why?
Use the four methods presented in this section to determine whether there is any evidence to suggest the data are from a non-normal population.
If a random sample of 200 test takers is selected, find the probability that the average score of the sample will be between 500 and 520.
a spinner is divided into 4 equal spaces. a player bets 2.00 on a given space. if the spinner lands on that space he is
Write a brief summary of the distribution of the area of homes.
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